What is the answer to this math problem

Mathematics

2 answers:

Nana76 [90]2 years ago

6 0

$1\dfrac{7}{10}+3\dfrac{13}{20}$

Method 1.

Find LCM of denominators:

LCM(10, 20) = 20

$1\dfrac{7\cdot2}{10\cdot2}+3\dfrac{13}{20}=1\dfrac{14}{20}+3\dfrac{13}{20}=(1+3)+\left(\dfrac{14+13}{20}\right)=4\dfrac{27}{20}=4\dfrac{20+7}{20}=5\dfrac{7}{20}$

Method 2.

Convert mixed numbers to decimal:

$1\dfrac{7}{10}=1.7\\\\3\dfrac{13}{20}=3\dfrac{13\cdot5}{20\cdot5}=3\dfrac{65}{100}=3.65\\\\1\dfrac{7}{10}+3\dfrac{13}{20}=1.7+3.65=5.35$

Alenkasestr [34]2 years ago

4 0

Hope this helps you..!!!

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Put y-x=-8 of a line into slope-intercept form, simplifying all fractions.

grigory [225]

Answer: $y= x-8$

Step-by-step explanation:

Slope intercept form has a general formula of $y=mx +b$
m represents the slope of the line
b represents the value of the lines y-intercept

the equation must be rearranged into the general formula by isolating for 'y'

$y-x=-8$

to remove the x from the left side of the equation the opposite operation must be done to both sides

$y-x+x=-8+x$

the negative and positive x cancel out on the left side, leaving us with the equation with y by itself
now you can rearrange to put the equation into $y=mx+b$